The discrete spectrum of the three-particle Schrödinger operator on $\mathbb{Z}^2$. Uzbek Mathematical Journal, [S. l.], v. 70, n. 3, p. 120–134, 2026. DOI: 10.29229/uzmj.2026-3-13. Disponível em: https://uzmj.mathinst.uz/index.php/uzmj/article/view/92.. Acesso em: 7 oct. 2026.